Filtered by vendor Qemu
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Total
415 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2007-1321 | 4 Debian, Fedoraproject, Qemu and 1 more | 5 Debian Linux, Fedora, Fedora Core and 2 more | 2025-04-09 | 7.2 HIGH | N/A |
| Integer signedness error in the NE2000 emulator in QEMU 0.8.2, as used in Xen and possibly other products, allows local users to trigger a heap-based buffer overflow via certain register values that bypass sanity checks, aka QEMU NE2000 "receive" integer signedness error. NOTE: this identifier was inadvertently used by some sources to cover multiple issues that were labeled "NE2000 network driver and the socket code," but separate identifiers have been created for the individual vulnerabilities since there are sometimes different fixes; see CVE-2007-5729 and CVE-2007-5730. | |||||
| CVE-2008-5714 | 1 Qemu | 1 Qemu | 2025-04-09 | 7.8 HIGH | N/A |
| Off-by-one error in monitor.c in Qemu 0.9.1 might make it easier for remote attackers to guess the VNC password, which is limited to seven characters where eight was intended. | |||||
| CVE-2021-4207 | 3 Debian, Qemu, Redhat | 3 Debian Linux, Qemu, Enterprise Linux | 2025-03-21 | 4.6 MEDIUM | 8.2 HIGH |
| A flaw was found in the QXL display device emulation in QEMU. A double fetch of guest controlled values `cursor->header.width` and `cursor->header.height` can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. A malicious privileged guest user could use this flaw to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process. | |||||
| CVE-2021-4206 | 3 Debian, Qemu, Redhat | 3 Debian Linux, Qemu, Enterprise Linux | 2025-03-21 | 4.6 MEDIUM | 8.2 HIGH |
| A flaw was found in the QXL display device emulation in QEMU. An integer overflow in the cursor_alloc() function can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. This flaw allows a malicious privileged guest user to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process. | |||||
| CVE-2021-3929 | 2 Fedoraproject, Qemu | 2 Fedora, Qemu | 2025-02-28 | N/A | 8.2 HIGH |
| A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU. This CVE is similar to CVE-2021-3750 and, just like it, when the reentrancy write triggers the reset function nvme_ctrl_reset(), data structs will be freed leading to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host. | |||||
| CVE-2021-3735 | 2 Debian, Qemu | 2 Debian Linux, Qemu | 2025-02-28 | N/A | 4.4 MEDIUM |
| A deadlock issue was found in the AHCI controller device of QEMU. It occurs on a software reset (ahci_reset_port) while handling a host-to-device Register FIS (Frame Information Structure) packet from the guest. A privileged user inside the guest could use this flaw to hang the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability. | |||||
| CVE-2023-0664 | 4 Fedoraproject, Microsoft, Qemu and 1 more | 4 Fedora, Windows, Qemu and 1 more | 2025-02-18 | N/A | 7.8 HIGH |
| A flaw was found in the QEMU Guest Agent service for Windows. A local unprivileged user may be able to manipulate the QEMU Guest Agent's Windows installer via repair custom actions to elevate their privileges on the system. | |||||
| CVE-2024-8354 | 2 Qemu, Redhat | 2 Qemu, Enterprise Linux | 2024-11-21 | N/A | 5.5 MEDIUM |
| A flaw was found in QEMU. An assertion failure was present in the usb_ep_get() function in hw/net/core.c when trying to get the USB endpoint from a USB device. This flaw may allow a malicious unprivileged guest user to crash the QEMU process on the host and cause a denial of service condition. | |||||
| CVE-2024-6505 | 2 Qemu, Redhat | 2 Qemu, Enterprise Linux | 2024-11-21 | N/A | 6.8 MEDIUM |
| A flaw was found in the virtio-net device in QEMU. When enabling the RSS feature on the virtio-net network card, the indirections_table data within RSS becomes controllable. Setting excessively large values may cause an index out-of-bounds issue, potentially resulting in heap overflow access. This flaw allows a privileged user in the guest to crash the QEMU process on the host. | |||||
| CVE-2023-5088 | 2 Qemu, Redhat | 2 Qemu, Enterprise Linux | 2024-11-21 | N/A | 6.4 MEDIUM |
| A bug in QEMU could cause a guest I/O operation otherwise addressed to an arbitrary disk offset to be targeted to offset 0 instead (potentially overwriting the VM's boot code). This could be used, for example, by L2 guests with a virtual disk (vdiskL2) stored on a virtual disk of an L1 (vdiskL1) hypervisor to read and/or write data to LBA 0 of vdiskL1, potentially gaining control of L1 at its next reboot. | |||||
| CVE-2023-4135 | 2 Fedoraproject, Qemu | 2 Fedora, Qemu | 2024-11-21 | N/A | 6.0 MEDIUM |
| A heap out-of-bounds memory read flaw was found in the virtual nvme device in QEMU. The QEMU process does not validate an offset provided by the guest before computing a host heap pointer, which is used for copying data back to the guest. Arbitrary heap memory relative to an allocated buffer can be disclosed. | |||||
| CVE-2023-42467 | 1 Qemu | 1 Qemu | 2024-11-21 | N/A | 5.5 MEDIUM |
| QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scsi/scsi-disk.c because scsi_disk_emulate_mode_select does not prevent s->qdev.blocksize from being 256. This stops QEMU and the guest immediately. | |||||
| CVE-2023-40360 | 1 Qemu | 1 Qemu | 2024-11-21 | N/A | 5.5 MEDIUM |
| QEMU through 8.0.4 accesses a NULL pointer in nvme_directive_receive in hw/nvme/ctrl.c because there is no check for whether an endurance group is configured before checking whether Flexible Data Placement is enabled. | |||||
| CVE-2023-3354 | 3 Fedoraproject, Qemu, Redhat | 4 Fedora, Qemu, Enterprise Linux and 1 more | 2024-11-21 | N/A | 7.5 HIGH |
| A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QEMU cleans up the connection again, resulting in a NULL pointer dereference issue. This could allow a remote unauthenticated client to cause a denial of service. | |||||
| CVE-2023-3301 | 2 Qemu, Redhat | 2 Qemu, Enterprise Linux | 2024-11-21 | N/A | 5.6 MEDIUM |
| A flaw was found in QEMU. The async nature of hot-unplug enables a race scenario where the net device backend is cleared before the virtio-net pci frontend has been unplugged. A malicious guest could use this time window to trigger an assertion and cause a denial of service. | |||||
| CVE-2023-3255 | 3 Fedoraproject, Qemu, Redhat | 3 Fedora, Qemu, Enterprise Linux | 2024-11-21 | N/A | 6.5 MEDIUM |
| A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the `inflate_buffer` function. This could allow a remote authenticated client who is able to send a clipboard to the VNC server to trigger a denial of service. | |||||
| CVE-2023-3180 | 3 Debian, Fedoraproject, Qemu | 3 Debian Linux, Fedora, Qemu | 2024-11-21 | N/A | 6.0 MEDIUM |
| A flaw was found in the QEMU virtual crypto device while handling data encryption/decryption requests in virtio_crypto_handle_sym_req. There is no check for the value of `src_len` and `dst_len` in virtio_crypto_sym_op_helper, potentially leading to a heap buffer overflow when the two values differ. | |||||
| CVE-2023-3019 | 2 Qemu, Redhat | 2 Qemu, Enterprise Linux | 2024-11-21 | N/A | 6.0 MEDIUM |
| A DMA reentrancy issue leading to a use-after-free error was found in the e1000e NIC emulation code in QEMU. This issue could allow a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. | |||||
| CVE-2023-2861 | 1 Qemu | 1 Qemu | 2024-11-21 | N/A | 6.0 MEDIUM |
| A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder. | |||||
| CVE-2023-2680 | 2 Qemu, Redhat | 2 Qemu, Enterprise Linux | 2024-11-21 | N/A | 7.5 HIGH |
| This CVE exists because of an incomplete fix for CVE-2021-3750. More specifically, the qemu-kvm package as released for Red Hat Enterprise Linux 9.1 via RHSA-2022:7967 included a version of qemu-kvm that was actually missing the fix for CVE-2021-3750. | |||||